Cashi is a free iPhone app developed by Wal-Mart de Mexico S.A.B de C.V. It falls under the category of Business & Productivity, specifically in the Finance subcategory. With Cashi, you can save money on every purchase you make at Walmart, Bodega Aurrera, Walmart Express, and Sam's Club.

To get started, simply download the app, create your user account, and load your cash balance at any of the participating stores mentioned above. You can also use your credit or debit card to add funds. Once you're set up, Cashi offers exclusive benefits such as bonuses and discounts on selected products.

In addition to the savings, Cashi allows you to conveniently pay over 70 services without leaving your home and without any commission fees. With its user-friendly interface and wide range of features, Cashi makes shopping and managing your finances easier than ever.